4L60E Solenoid Kit 2006-2007

Owners of 2006 and 2007 Silverado 1500s, Sierra 1500s, Tahoes, Yukons and Suburbans usually land here after a truck that bangs into gear, slips between shifts, refuses fourth, or drops into a second-gear limp mode with the check engine light on. This remanufactured solenoid kit is matched to the 2006-2007 4L60E and is backed by a 1-year warranty, so the electrical half of the valve body can be renewed with tested parts instead of guesswork.

What the solenoid kit does in a 2006-2007 4L60E

Gear selection in the 4L60E comes down to two on/off shift solenoids. The computer energizes A and B in different combinations to move the 1-2 and 2-3 shift valves, and overdrive is simply A on with B off. Shift quality is a separate job handled by the pressure control solenoid, which varies line pressure by the current the computer sends it. Converter lockup and the 3-2 downshift each have their own solenoids as well. Because every one of these parts sits in the same hot fluid on the same valve body, a truck that has worn out one usually has others drifting out of spec, and a remanufactured kit puts every circuit back to a known baseline at the same time.

Symptoms on 2006-2007 trucks

• Harsh, late or soft shifts, often with code P0748 from the pressure control solenoid
• No upshift out of first or second, with P0753 or P0758 for shift solenoid A or B
• Limp mode: launches in second or locks in third until the engine is restarted
• Converter clutch not applying or code P0740
• Rough or delayed 3-2 downshift with P0785

How to confirm it before you order

A solenoid code tells you a circuit failed, not which part. Check resistance at the transmission case connector against the published spec first, then wiggle the harness while watching the meter. ATRA has documented a bad crimp on the common feed circuit setting P0740, P0753, P0758 and P0785 together, which is a wiring repair rather than a parts swap. Our P0748 pressure control solenoid guide walks through the shift-feel side, and the 3-2 downshift solenoid and P0785 article covers downshift complaints. Transmission Digest has also shown a slow solenoid that measured within spec and still set a code, so a good ohm reading does not fully clear a part. If the circuits are healthy and shifts are still wrong, a vacuum test of the valve body is the next diagnostic step.

Fitment

This kit is listed for the 4L60E in 2006 and 2007 applications, which covers the GM full-size trucks and SUVs that used it in those years. Late 4L60E units took running changes in solenoids and harness connectors, so year alone is not a guarantee. Line up the connector shapes and solenoid bodies in the photos with the parts on your valve body, or send us your year and VIN and we will confirm before it ships. The listing does not itemize every piece, so ask if you need a particular solenoid verified. Kits for other model years are on our 4L60E parts page, and the 2003-2007 solenoid kit is a broader-range alternative.

Install notes

• Park on level ground, drain the pan, and remove the filter. Most solenoids come off the valve body with their own clips or bolts, so the valve body can usually stay in place.
• Check the internal harness and pass-through connector for brittle insulation or green pins. Heat damage there will bring the codes right back.
• Coat the O-rings with clean ATF and press each solenoid in square to its bore.
• If the fluid is dark or full of material, look at the whole valve body; the 4L60E valve body with solenoids and harness is an option for badly worn units.
• Refill with Dexron VI, check level at operating temperature, clear codes, and reset adapts with a capable scan tool before the test drive.

Does this kit fit a 2006 or 2007 Silverado 1500 with the 4L60E?

It is listed for 2006-2007 4L60E applications, including the full-size trucks and SUVs. Compare the connectors to the photos or send us your year and VIN to confirm before ordering.

Is remanufactured as good as new?

A remanufactured kit is rebuilt and tested to work as a known-good set, and this one carries a 1-year warranty. It lets you replace the whole set at once for a lower cost than buying each new solenoid separately.

My truck has P0748. Is the pressure control solenoid the cause?

Often, but not always. Measure the solenoid at the case connector and inspect the harness first. A worn valve body bore can also cause pressure complaints that a new solenoid will not fix.

Do I have to drop the valve body?

Usually not. With the pan and filter off, the solenoids are removed by their clips or bolts. Plan on a new filter and pan gasket while it is open.

What fluid does a 2006-2007 4L60E take?

Dexron VI ATF. Check the level hot after the install, then clear codes and reset shift adapts.

• 4L60E P0748: Pressure Control Solenoid Failure - Causes, Diagnosis, and Fix
• 4L60E 3-2 Downshift Solenoid and Code P0785: What It Really Means
• 4L60E Shift Solenoids A and B: Codes P0753 and P0758
• 4L60E Common Problems, Symptoms, and What to Actually Do About Them